Milling vise



-March 23 1926. 7 1,578,197

J. F. KEYES v MILLING VISE Filed August 26, 1920 if A? 27 56 w INVENTEIR 2 521 TIEIHNFKEYEB WQM AT TDBNIBY Patented Mar. 23, 1225.

UNITED STATES PATENT oFF cE.

J OHN FRANCIS KEYES, OF SPRING-FIELD, MASSACHUSETTS.

MILLING VISE.

Application filed August 26, 1920. Serial No. 406,210.

To all whom it may concern. Be it known that 1, JOHN F. Ixnrns, a c tizen of the United States of America, residing at Springfield, in the county of Hampthe output is increased by eliminating 1110- tions, though the invention can be applied to any form of a vise.

One of the objects of the'invention is to provide a vise with a movable jaw which may be advanced to clamping position by means of a screw, a separable nut for disengaging the movable jaw from the screw and a spring or like device for imparting rapid motion to the movable jaw to return the same when the nut is disengaged from the screw.

Another object of the invention is to provide means for adjusting the spring to vary the tension thereof.

lVith the above and other objects in view this invention relates to certain new and useful constructions, combinations and ar-- rangements of parts, clearly described in the following specification and fully illustrated in the accompanying drawings, in

which:

. Fig. 1 is a top plan view partly in longitudinal section. I

'Fig. 2 is a transverse sectional view.

Fig. 3 is a longitudinal sectional view.

Referring to the accompanying drawings 5 designates a table or base having a mov-- able jaw 6 slidable thereon against the rigid jaw 7 provided on said table or base 5. The

: movable jaw isprovided with a base8I hav-' ing key lugs 8 thereon to engage the key ways 5 formed in the table orbase 5, where i by the movable jaw will be slidably interlocked with the base or table 5. .1 The movable jaw is shown to be provided with an integral side wall. 9 and a detachable side i wall 10 having an integral top 11, the side wall 10 being secured to the base of the movable jaw by means of screws 12 or the like and the top wall 11 being secured to the side wall 9 by screws 18 or the like.

Within the chamber provided by the hollow movable jaw, a pair of separable nut sections 14 and 15 are mounted to slide up on the key ways 16 formed in the base of the movable jaw, and the sections or members 14 and 15 are provided with right and left threads 17, engaged by the right andleft threads 18 of the screw shaft 19, one end of which has a bearing 19 on the side wall 10 and the other end of which 19 e);-

tends through the sidewall 9 and is engaged by the crank 20 whereby the same may be rotated. hen the crank 20 is rotated in one direction the section or members 14 and 15 will be moved toward each other and when it is rotated in the opposite direction I the sections or members will be moved away from each other. The male and female threads are preferably triple so that a rapid motion will be imparted to the sections 14 and 15.when the crank 20 has been moved a short distance, such as a third of a revolution, and the nut sections 14%; and 15 will be separated from each other a suliicient distance to safely clear the thread of the pro p'elling screw 21, which is mounted to rotate 1n tllGbQtlIlIlg 22 provided on the base 5 and arm 25, and the rear end of which engages forcibly shifted by" means of the expansion spring 24., the forward end of which engages the upstanding the screw 29 of the movable jaw. The arm v 26 works ,in a groove 25 formed in the base 8 of the movable jaw, and said arm is provided with a lateral stem 28, which is seouredto the lower-end of the arm 25. The stem 28 extends through the slot 28- tion by'means of'the nut27, which is threaded on the stem'28 againstthe side of the base 5, as shown iii-Fig. ,1. By adjusting the stem on the base'therelation of meanest formed in the base 5 and is held in ad ustable posito the expansion spring 2d will be varied, and the tension of the spring may be adjusted. The screw 29 is adjusted by means of the head 30, to vary the tension of the spring.

When the nut sections 14 and 15 are moved away from each other the expansion spring will expand against the adjustable stop 25 and return the movable jaw to its initial position. lVhen the screw 21 is operated to move the movable jaw toward the rigid jaw to clamp the work the spring will be placed under compression so that the spring will always function to return the movable jaw and release the work clamped between the two jaws.

The invention is particularly designed for use in connection with milling vises and simplifies the motions required to remove the work after being milled, but the invention is capable of application to any type of vise, bench or otherwise.

Having described my invention I claim 1. A vise comprising a rigid jaw, a jaw movable relatively thereto, a screw for propelling the movable jaw, separable nut sections for connecting thein'iovable jaw to the screw, means for moving the nut sections toward and away from each other, and means for moving the movable jaw away from the rigid jaw releasable when the nut sections are disengaged from the propelling screw.

2. A vise comprising a fixed jaw, a jaw movable relatively to the fixed jaw, a screw for naming the movable jaw relatively to the fixed jaw, means for connecting the movable jaw with the screw, and means for shif ing said connecting means to disengage said screw from said movable jaw including a right and left threaded screw.

3. A vise comprising a fixed jaw, a jaw movaole relative thereto, a spring for moving said movable aw away from said fixed jaw, a screw, and means carried' by the movable jaw for engaging said screwto permit he screw to propel said movable jaw, said means being disengageable from said screw to permit the spring to return the movable jaw to its initial position.

A vise comprising a fixed jaw, a jaw movable relative thereto, means for imparting a quick motion to the movable jaw, a screw snaft for propelling the movable jaw in one direction, a nut carried by the movable jaw and adapted to have operative en gagement with the screw shaft, and a worm shaft for moving the not into and out of engagement with the screw shaft.

5. A vise comprising a fixed jaw, a jaw.

movable toward and away from the fixed jaw, a worm shaft for propelling the movable jaw, a second worm shaft disposed transversely of the first worm shaft, and a nut having operative engagement with the second worm shaft and adapted to be propelled thereby into and out of engagement with the first worm shaft, whereby the movable jaw may be propelled by the action of said first worm shaft or otherwise.

6. A vise comprising a bed having av fixed jaw thereon, a movable jaw slidablc on'the bed, a split nut slidable on the movable jaw, a worm shaft for moving the sections of the split nut in opposite directions simultaneously, and a worm shaft having a bearing on the bed and threaded engagement with the split nut, whereby the movable jaw may be propelled on the bed.

7. A vise comprising a bed having a fixed jaw, a movablejaw thereon, a main propelling worm shaft having a bearing on the bed, divided means providing a driving engagement between the movable jaw and the shaft movable transversely of the shaft in opposite directions, means for simultaneously moving the divided means toward oraway from each other and adapted to resist the displacement of said first named means under the load transmitted by said main shaft, whereby said first named means may be disengaged from the main shaft, and means for propelling the movable jaw in a reverse direction when the first named means is disengaged from the. main shaft.

8. A vise comprising a bed having a fixed jaw thereon, a jaw movable on the bed toward and away from the fixed aw, a spring for rapidly moving the movable jaw away from the fixed jaw, a screw for propelling the movable jaw toward the fixed jaw and for placing the spring under tension, a nut carried by the movable jaw for engaging the screw, and means carried by the nut for moving the same out of engagement with the screw to permit the spring to react andv propel the movable jaw away from the fixed jaw.

9. A vise comprising a bed and a fixed jaw thereon, a jaw movable toward and away from the fixed aw, a spring having a hearing atone end with the movable jaw to pro pel it away from the fixed jaw, an adjustable stop for the other end of the spring providing means for varying its tension, a screw for propelling the movable jaw, and means for establishing and disestablishing driving engagement between the screw and the movable jaw.

10. A vise comprisin a bed having a fixed aw thereon, a movable jaw on the bed, a screw for propelling the movable jaw on the bed, a right and left threaded screw carried by the movable jaw, and means controlled by said right and left threaded screw for establishing and disestablish-ing a driving ongagement between said right and left re ed s r and the movable: jaw.

11. A vise comprising a bed having a fixed V and left threaded screw journaled on' said jaw thereon, a movable jaw on the bed, a movable jaw and working through the nut spring having a bearing at one end on the sections to move said nut sections toward 10 bed and at the other against the movable and away from each other.

' jaW, a screw for propelling the movable jaw, Signed by me at Springfield, Massachuguides on the movable jaw, nut sections slidsable horizontally on said guides, and a right JOHN FRANCIS KEYES. 

